Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711814223%7.2Harden
Average Character0.0054869197241%2.0Easyen
Black and White0.0759252523645%4.9Mediumen
Circle Bounce0.0020026111745%5.4Mediumen
Diagonals0.0018532367030%7.1Harden
Dorm Room Divide0.01476185926514%6.4Harden
Double Password0.0054587265558%1.5Easyen
Fail Them All!0.0089950512024%7.7Harden
Hopscotch 5000.1187871515922%7.0Harden
Overdraft0.0053148129941%2.0Easyen
Problem Set Construction0.019401104541%6.5Harden
Reversibly Cyclic Strings0.00581934442%3.3Mediumen
Rise and Fall0.0088118827923%4.6Mediumen
Scaling Recipe0.005206093245%1.9Easyen
Shortest Missing Subsequences0.0939444714332%6.0Harden
Square Bounce0.004702045929%6.7Harden
Tetris Generation0.0090129431124%6.0Harden
Tournament Seeding0.0122058224242%4.1Mediumen
Tree Hopping0.02893108532730%6.2Harden
Who Goes There?0.00119137743532%3.7Mediumen
XOR Island0.0027937613035%6.9Harden